Deviating from the rule for that particular taxon; for example, 5 stamens instead of the normal 4.
In psychological terms, any mental or behavioral activity that deviates from culturally scientifically determined norms.
Contrary to the usual order of things.
In psychology, psychological deviation from the norm or usual; behavior that is detrimental to the person or to the society.
Unusual in placement, development, structure, or condition.
A structure or process that is not normal (typical, usual or conforming to the standard); differing from the usual condition of the body.
Diverging from a known standard or mean.